Uninterruptible power supply



FIG. 1 is a perspective view of uninterruptible power supply, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 top plan view thereof;

FIG. 5 is a back side view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for uninterruptible power supply, as shown and described. 